From f0f1bf8536fe660cb6230a22694f9b7e6b02605e Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 12 Sep 1996 02:51:03 +0000 Subject: update from main archive 960911 Thu Sep 12 03:35:27 1996 Ulrich Drepper * sysdeps/unix/sysv/linux/i386/Dist: Remove init-first.h. * sysdeps/unix/sysv/linux/m68k/Dist: Likewise. * sysdeps/unix/sysv/linux/Dist: Add init-first.h. 1996-09-11 Paul Eggert * strftime.c (strftime): Handle E and O modifiers, required for POSIX.2 and XPG4. Don't use sprintf to format numbers; this way, we can handle time_t correctly regardless of whether it's signed. Don't dump core if format ends in %. In default %c format, use %e instead of %d, for POSIX.2 compatibility. For %z: Use tm_gmtoff if available. Output nothing if tm_isdst is negative. Output correct value even if arg is 1969-12-31 23:59:59 UTC. Don't assume that UTC offset is less than 24 hours; Posix requires support for 24 hours, and there's no point limiting it at all. (HAVE_TM_GMTOFF, TYPE_SIGNED, INT_STRLEN_BOUND): New macros. (CHAR_BIT): Define if doesn't. (tm_diff): New function. (fmt, ): Remove; no longer used. Thu Sep 12 02:21:44 1996 Ulrich Drepper * db/Makefile: Add extra-libs-others variable so that shared library is built in `others' pass. * elf/Makefile: Likewise. * math/Makefile: Likewise. * resolv/Makefile: Likewise. * Makefile (generated): Add version.info.h. * time/checktab.awk: New file. From ADO 96k. * time/iso3166.tab: Likewise. * time/tzselect.ksh: Likewise. * time/zone.tab: Likewise. * stdio-common/vfprintf.c: Correct cleanup registration. We cannot use a macro 1996-09-11 Paul Eggert * time/time.h (tm_gmtoff, tm_zone): Prefix with `__' unless __USE_BSD; this is required for ANSI C compatibility. * manual/time.texi: Replace GMT by UTC, daylight savings by daylight saving, timezone by time zone. Rewrite description of %V to match ISO 8601. Fix TZ Posix string example for US Eastern time. Explain tzname[1] when DST isn't used. Explain tzname when multiple abbreviations used (e.g. EST/EWT/EDT). Explain that timezone's sign is opposite from tm_gmtoff, and that timezone lacks DST adjustment whereas tm_gmtoff has it. Deprecate tzname and timezone. Tue Sep 10 14:46:16 1996 Andreas Schwab Implement Roland McGrath's idea of how to put an .interp into shared libraries. * interp.c: New file. * Makerules (interp-obj): New object, linked into every shared library. (common-generated): Add interp.so. (CFLAGS-interp.c): Pass name of interpreter. Tue Sep 10 21:09:35 1996 Andreas Schwab * db/Makefile: Fix typo. Tue Sep 10 19:29:53 1996 Andreas Schwab * nss/db-Makefile ($(VAR_DB)/passwd.db): Look for multiple occurences of the same uid, and only generate a mapping for the first one. Tue Sep 10 03:14:59 1996 Andreas Schwab * sysdeps/unix/sysv/linux/system.c: New file, to override sysdeps/unix/system.c. Tue Sep 10 15:05:40 1996 Andreas Schwab * Makefile (before-compile): Add version-info.h, needed to build version.d. Tue Sep 10 14:14:33 1996 Andreas Schwab * sysdeps/unix/sysv/linux/m68k/sysdep.S: Remove check for EWOULDBLOCK, never true on Linux. (__errno_location): New function. [_LIBC_REENTRANT]: Set errno using __errno_location function. * sysdeps/unix/sysv/linux/m68k/sysdep.h [PIC]: Add second syscall_error handler for reentrant libc. Tue Sep 10 13:27:49 1996 Andreas Schwab * elf/Makefile (extra-objs): Add eval.so to get dependencies. Wed Sep 11 04:40:57 1996 Ulrich Drepper * time/tzset.c (__tzname_cur_max): Use type `size_t' to avoid warning. * time/tzfile.c (compute_tzname_max): Likewise. --- sysdeps/unix/sysv/linux/Dist | 1 + sysdeps/unix/sysv/linux/i386/Dist | 1 - sysdeps/unix/sysv/linux/m68k/Dist | 1 - sysdeps/unix/sysv/linux/m68k/sysdep.S | 39 ++++++++++++++++++++--------------- sysdeps/unix/sysv/linux/m68k/sysdep.h | 20 +++++++++++++++++- 5 files changed, 42 insertions(+), 20 deletions(-) (limited to 'sysdeps/unix/sysv') diff --git a/sysdeps/unix/sysv/linux/Dist b/sysdeps/unix/sysv/linux/Dist index a6b5db6749..db0cd6000d 100644 --- a/sysdeps/unix/sysv/linux/Dist +++ b/sysdeps/unix/sysv/linux/Dist @@ -1,3 +1,4 @@ +init-first.h sysctl.c net/if.h nfs/nfs.h diff --git a/sysdeps/unix/sysv/linux/i386/Dist b/sysdeps/unix/sysv/linux/i386/Dist index 780edfca50..d5cc620549 100644 --- a/sysdeps/unix/sysv/linux/i386/Dist +++ b/sysdeps/unix/sysv/linux/i386/Dist @@ -1,3 +1,2 @@ sys/perm.h sys/vm86.h -init-first.h clone.S diff --git a/sysdeps/unix/sysv/linux/m68k/Dist b/sysdeps/unix/sysv/linux/m68k/Dist index a281cba3f9..738b9cc542 100644 --- a/sysdeps/unix/sysv/linux/m68k/Dist +++ b/sysdeps/unix/sysv/linux/m68k/Dist @@ -1,2 +1 @@ -init-first.h clone.S diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.S b/sysdeps/unix/sysv/linux/m68k/sysdep.S index 895ea2770b..674715f824 100644 --- a/sysdeps/unix/sysv/linux/m68k/sysdep.S +++ b/sysdeps/unix/sysv/linux/m68k/sysdep.S @@ -33,8 +33,9 @@ errno: .space 4 _errno = errno /* This name is expected by hj libc.so.5 startup code. */ .text -/* The following code is not used at all in the shared library. - The PIC system call stubs set errno themselves. */ +/* The following code is only used in the shared library when we + compile the reentrant version. Otherwise each system call defines + each own version. */ #ifndef PIC @@ -42,30 +43,34 @@ _errno = errno /* This name is expected by hj libc.so.5 startup code. */ #define _ERRNO_H #include -.globl errno -.globl __syscall_error - /* The syscall stubs jump here when they detect an error. */ .globl __syscall_error __syscall_error: neg.l %d0 - -#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN - /* We translate the system's EWOULDBLOCK error into EAGAIN. - The GNU C library always defines EWOULDBLOCK==EAGAIN. - EWOULDBLOCK_sys is the original number. */ - move.l #EWOULDBLOCK_sys, %d1 - cmp.l %d0, %d1 - jne 1f - move.l #EAGAIN, %d0 -1: -#endif - move.l %d0, errno +#ifdef _LIBC_REENTRANT + move.l %d0, -(%sp) + jbsr __errno_location + move.l (%sp)+, (%a0) +#endif move.l #-1, %d0 /* Copy return value to %a0 for syscalls that are declared to return a pointer. */ move.l %d0, %a0 rts + .size __syscall_error, . - __syscall_error #endif /* PIC */ + +#ifdef _LIBC_REENTRANT + .globl __errno_location + .type __errno_location, @function +__errno_location: +#ifdef PIC + move.l (%pc, errno@GOTPC), %a0 +#else + lea errno, %a0 +#endif + rts + .size __errno_location, . - __errno_location +#endif diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep.h b/sysdeps/unix/sysv/linux/m68k/sysdep.h index fe2c6aa823..9de750c326 100644 --- a/sysdeps/unix/sysv/linux/m68k/sysdep.h +++ b/sysdeps/unix/sysv/linux/m68k/sysdep.h @@ -78,19 +78,37 @@ Cambridge, MA 02139, USA. */ #ifdef PIC /* Store (- %d0) into errno through the GOT. */ +#ifdef _LIBC_REENTRANT #define SYSCALL_ERROR_HANDLER \ + .type syscall_error, @function; \ syscall_error: \ move.l (errno@GOTPC, %pc), %a0; \ neg.l %d0; \ move.l %d0, (%a0); \ + move.l %d0, -(%sp); \ + jbsr __errno_location@PLTPC \ + move.l (%sp)+, (%a0); \ move.l POUND -1, %d0; \ /* Copy return value to %a0 for syscalls that are declared to return \ a pointer (e.g., mmap). */ \ move.l %d0, %a0; \ rts; #else +#define SYSCALL_ERROR_HANDLER \ + .type syscall_error, @function; \ +syscall_error: \ + move.l (errno@GOTPC, %pc), %a0; \ + neg.l %d0; \ + move.l %d0, (%a0); \ + move.l POUND -1, %d0; \ + /* Copy return value to %a0 for syscalls that are declared to return \ + a pointer (e.g., mmap). */ \ + move.l %d0, %a0; \ + rts; +#endif /* _LIBC_REENTRANT */ +#else #define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */ -#endif +#endif /* PIC */ /* Linux takes system call arguments in registers: -- cgit v1.2.3